Clutch.



Nn.- 693,313. y Pagented Feb. lr, |902.

u. BAnnsLEY.

cLmcn.

. (Applimion med Qca. 14, 1901.) (in lkodel'.)

.f 7/ n Wifi-Masses l .Z5/22522607? ff 337%@ y 'Corneya vIO UNITEDSTATES PATENT OEEICE.

HENRY BARDSLEY, OFl PROVIDENCE, RHODE ISLAND, ASSIGNORTO CROMPTON irKNOWLES LOOM WORKS, OF PROVIDENCE, RHODE ISLAND, A CORPORATION OF RHODEISLAND.

CLUTCH.

SPECIFICATION forming part of Letters Patent No. 693,318, dated February1 1, 1902. Application iiled October 14, 1901. Serial No. 78,520. (Nomodel.)

To all whom t may concern:

Be it known that I, HENRY BAEDSLEY, a citizen of the United States,residing at Providence, in the county of Providence,-State of RhodeIsland, have invented a certain new` produce a new and improved clutchwhich shall be adapted for general use on looms and other machinery, andmore especially to produce a clutch which shall operate without tendencyto press endwise in its bearings the shaft to which the clutch isapplied in practice. This tendency in the case of preexistingarrangements of clutch mechanism has the disadvantage of causing theshaft to run hard and produce wear.

The invention consists inclutch mechanism of the character which I willnow proceed to describe with reference to the accompanying drawings, inwhich Y latter I have illustrated an embodiment of the invention in itsbest or preferredA form.

In the drawings, Figure 1 shows in plan, partly in horizontal section,the said embodiment of the invention. Fig. 2 is a detail view` in planon a larger scale. Fig. 3 is an end elevation of the parts' which arerepresented in Fig. 2 with the shaft in vertical section.

Having reference to the drawings, l designates part of the framing of amachine in connection with which my improved clutch mechanism issupposed to be employed, and 2 is a rotating shaft which is mounted insuitable bearings (not necessary to be shown) in thesaid frame. 3 is aiiy-wheel on the said shaft. Y

The invention is represented as embodied in connection with afriction-clutch, the main elements of which comprise the clutch member4, which is fast with the shaft 2, and the clutchmember 5, which ismounted on shaft 2 with capacity-to turn thereon and also to movelengthwise of the shaft.

6 is a frictional surfacing of usual character interposed between theproximate faces of the clutch members 4 and 5 and fastened pair ofcam-disks.

to one of the latter. The clutch member 5 is shown formed as aband-pulley suitable to receive or transmit power through theapplication of a driving-band thereto.

The features thus far described are not in themselves of the gist of theinvention, and it will be understood that the character and constructionof the clutch members per se may vary in practice.

For the purpose of occasioning driving interengagement of the coactingclutch mem-A bers 4 and 5 Iprovide a pair of disks 7 7.

These disks are mounted upon the shaft 2v adjacent the movable clutchmember 5, a Washer 8 being interposed between the hub of the said clutchmember 5 and the disk 7 which comes next thereto. This washer isintended to take the wear that is incident to the working of the parts.The disks 7 7 and washer 8 are interposed between the said hub of theclutch member 5 and a relatively-fixed abutment, which is constitutedbya shoulder at 9 upon the shaft 2, the said shoulder in the presentcase being constituted by the inner end of a sleeve 10, which is keyedupon the shaft. The respective disks 7 7 contact with each other bytheir proximate faces, these faces being shaped to constitute cams. Thetwo disks 7 7 constitute an expanding In the relative position in whichthey are shown in Fig.v 1, with the cam projections of one disk receivedin the cam depressions of the other, the two disks are'contracted intotheir narrowestwidth. This permits the clutch to open, as in Fig. 1.When, however, relative movement of the cam-disks is occasioned,theaction of the camfaces spreads the disks apart from each other, therebyexpanding the same between the shoulder 9 and the movable clutch member5, so as toforce the movable clutch member 5 into driving engagementwith the opposing clutch members 4. For the purpose of env abling thedisks 7 7 to be moved as required in operating the clutch I provide anactuator, which in the illustrated embodiment of the invention isconstituted by a collar 11,which is fitted upon the exterior of thesleeve 10 and formed with a Ygroove 12 for the reception of the pins 13on the fork of a shipper loo 14. The actuator or collar 11 is formed orprovided with acylindrical extension 15, constituting a bonnet, whichineloses the disks. From the peripheries of the disks 7 7 project radialpins or screws 71 7l,working in diagonal slots 72 72, which are formedin the bonnet 15. The slots 72, which receive the pins 71 of one disk,inclinein one direction, while those which receive the pins or screws ofthe otherineline in the opposite direction. Preferably there are twopairs of the pins or screws and slots. rlhe said slots constitute, ineect, cams, and it will be perceived that movement of the collar andbonnet in one direction will move the disks 7 7 relatively to eaeh otherin a direction to expand or separate the disks, while movement of thesaid collar and bonnet then occurring in the reverse direction willpermit the disks to contract together once more.

The shipper 14 is here shown as a lever pivoted at 16 upon a bracket 17,projecting outwardly from the frame 1 and provided with a bearing at171, which fits the shaft 2 adjacent the outer end of the sleeve 10. Theshipper-lever has bolted thereto at 1S 18 an arm or extension 19, whichextends inwardly toward the frame 1 and has connected therewith anoperating-rod 20. The said arm 19 is U-shaped in order that it mayextend around the clutch members and ily-wheel 3 without making contacttherewith.

I claim as my' invention- 1. The combination with the shaft, of theimproved clutch comprising, essentially, eoacti ng clutch members, theexpanding pair of camdisks mounted coneentrically with relation to saidshaft between a relatively fixed abutment thereon and the said clutchmembers, the movable actuator' provided with cams in operativeengagement with the calndisks whereby to turn said cam-disks relativelyto each other, and the shipper to move said actuator, substantially asdescribed.

2. The combination with the shaft, of the improved clutch comprising,essentially, coacting clutch members, the expanding pair of cam-disksmounted eoncentrically With relation to said shaft between a shoulderthereon and the said clutch members, the movable actuator provided withthe bonnet surround ing said cam-disks and furnished with the cams inoperative engagement with the said cam-disks whereby to turn said camdisks relatively to each other, and the shipper to move said actuator,substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

HENRY BARDSLEY.

Vitnesses:

E. W. DAVENPORT, E. Nsnm.

